Expose version in command line and footer.

src/rphotosadm.rs

@@ -38,6 +38,7 @@ fn main() {
     dotenv().ok();
     env_logger::init().unwrap();
     let args = App::new("rphotoadm")
+        .version(env!("CARGO_PKG_VERSION"))
         .about("Command line interface for rphotos")
         .subcommand(SubCommand::with_name("findphotos")
             .about("Find new photos in the photo directory")

templates/page_base.rs.html

@@ -20,8 +20,8 @@
     </main>
     <footer>
       <p>Managed by
-	<a href="https://github.com/kaj/rphotos">rphotos, which is
-	open source</a>.</p>
+	<a href="https://github.com/kaj/rphotos">rphotos
+	@env!("CARGO_PKG_VERSION"), which is open source</a>.</p>
     </footer>
   </body>
 </html>